Eos/eosweb/core/templates/election/view/booth.html

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{% extends 'base.html' %}
{#
Eos - Verifiable elections
Copyright © 2017 RunasSudo (Yingtong Li)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
#}
{% block title %}{{ election.name }} – Voting booth{% endblock %}
{% block head %}
{{ super() }}
<link rel="stylesheet" href="{{ url_for('static', filename='bower_components/dragula.js/dist/dragula.min.css') }}" type="text/css">
{% endblock %}
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{% block content %}
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<div class="ui container" id="booth-content">
<div class="ui active text loader">Loading voting booth. Please wait.</div>
</div>
{% endblock %}
{% block basecontent %}
{{ super() }}
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<script src="{{ url_for('static', filename='bower_components/nunjucks/browser/nunjucks.min.js') }}"></script>
<script src="{{ url_for('static', filename='js/eosjs.js') }}"></script>
<script src="{{ url_for('static', filename='bower_components/dragula.js/dist/dragula.min.js') }}"></script>
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{% if eosweb.app.config['CAST_FINGERPRINT'] %}
<script src="{{ url_for('static', filename='bower_components/fingerprintjs2/dist/fingerprint2.min.js') }}"></script>
{% endif %}
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<script>
var templates = {};
var election = null;
var booth = null;
var boothWorker = null;
var boothTasks = [];
var currentBoothTask = 0;
var selection_model_view_map = {{ selection_model_view_map|safe }}; {# :rooWut: #}
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var username = {% if session.user %}"{{ session.user.name }}"{% else %}null{% endif %};
var auth_methods = {{ auth_methods|safe }};
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var should_do_fingerprint = {{ 'true' if eosweb.app.config['CAST_FINGERPRINT'] else 'false' }};
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function resetBooth() {
booth = {
"questionNum": 0,
"answers": [],
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"q_state": [],
"fingerprint": []
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};
}
resetBooth();
function loadElection() {
$.ajax({ url: "{{ url_for('election_api_json', election_id=election._id) }}", dataType: "text" })
.done(function(data) {
try {
election = eosjs.eos.core.objects.__all__.EosObject.deserialise_and_unwrap(eosjs.eos.core.objects.__all__.EosObject.from_json(data), null);
boothWorker = new Worker("{{ url_for('static', filename='js/booth_worker.js') }}");
electionLoaded();
} catch (err) {
loadError(err);
throw err;
}
})
.fail(function(xhr, status, err) {
loadError(err);
throw err;
});
}
function electionLoaded() {
// Load templates for the question types
for (var i = 0; i < election.questions.__len__(); i++) {
var question = election.questions.__getitem__(i);
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templates[selection_model_view_map[question._name]['selections_make']] = null;
templates[selection_model_view_map[question._name]['selections_review']] = null;
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}
loadTemplates();
}
function loadTemplates() {
// Load all the templates
var templateUrls = Object.keys(templates);
var numTemplatesLoaded = 0;
for (var templateUrl of templateUrls) {
(function(templateUrl) {
$.ajax({
url: "{{ url_for('static', filename='nunjucks') }}/" + templateUrl,
dataType: "text"
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})
.done(function(data) {
try {
templates[templateUrl] = nunjucks.compile(data);
numTemplatesLoaded += 1;
if (numTemplatesLoaded == templateUrls.length) {
// All templates loaded. Show voting booth
boothTasks[0].activate(true);
}
} catch (err) {
loadError(err);
throw err;
}
})
.fail(function(xhr, status, err) {
loadError(err);
throw err;
});
})(templateUrl);
}
}
function loadError(err) {
var techDetails = '';
if (err) {
techDetails = '<p>Technical details: ' + err + '</p>';
}
$("#booth-content").html('<div class="ui error message"><p>We were unable to load the voting booth for this {{ election.kind }}. Please try again. If this problem persists, contact the {{ election.kind }} administrator.</p>' + techDetails + '</div>');
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}
function boothError(err) {
resetBooth();
var techDetails = '';
if (err) {
techDetails = '<p>Technical details: ' + err + '</p>';
}
$("#booth-content").html('<div class="ui error message"><p>We were unable to display the next page of the voting booth. For your security, your ballot selections have been cleared. Please try again. If this problem persists, contact the {{ election.kind }} administrator.</p>' + techDetails + '</div>');
console.error(err);
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}
function showTemplate(template, opts, destination) {
try {
if (!destination) {
destination = "#booth-content";
}
if (!opts) {
opts = {};
}
opts = $.extend({
"templates": templates,
"template": template,
"election_base_url": "{{ url_for('election_api_json', election_id=election._id) }}",
"static_base_url": "{{ url_for('static', filename='') }}",
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"election": election,
"booth": booth,
"eosjs": eosjs,
"selection_model_view_map": selection_model_view_map,
"username": username,
"auth_methods": auth_methods
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}, opts);
$(destination).html(templates[template].render(opts));
} catch (err) {
boothError(err);
throw err;
}
}
function nextTemplate(num) {
if (!num) {
num = 1;
}
currentBoothTask += num;
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boothTasks[currentBoothTask].activate(true);
}
function prevTemplate(num) {
if (!num) {
num = 1;
}
currentBoothTask -= num;
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boothTasks[currentBoothTask].activate(false);
}
// === BOOTH TASKS ===
// TODO: Make modular
boothTasks.append({
activate: function(fromLeft) {
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showTemplate('booth/welcome.html');
}
});
templates['booth/base.html'] = null;
templates['booth/welcome.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
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showTemplate('booth/selections.html');
}
});
templates['booth/selections.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
if (fromLeft) {
showTemplate('booth/encrypt.html');
} else {
prevTemplate();
}
}
});
templates['booth/encrypt.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
showTemplate('booth/review.html', {ballot: booth.ballot});
}
});
templates['booth/review.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
showTemplate('booth/audit.html', {ballot: booth.ballot});
}
});
templates['booth/audit.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
showTemplate('booth/cast.html', {ballot: booth.ballot});
}
});
templates['booth/cast.html'] = null;
boothTasks.append({
activate: function(fromLeft) {
showTemplate('booth/complete.html', {voter: booth.voter, vote: booth.vote});
}
});
templates['booth/complete.html'] = null;
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// === END BOOTH TASKS ===
loadElection();
</script>
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{% endblock %}